Answer:
2:3.
Step-by-step explanation:
The number of children = 2+ 4 = 6.
So the required ratio is 4:6 which simplifies to 2:3.
Answer:
2.3
is yo sex answer
help fast, please
A. Expand the following and state the Law that is indicated.
1. log4(3x)
2. log3(27/x)
3. log4(x5)
ANSWER
1.
[tex]log_{4}(3x) = log_{4}(3) + log_{4}(x)[/tex]
2.
[tex]log_{3}( \frac{27}{x} ) = 3 - log_{3}(x)[/tex]
3.
[tex]log_{4}( {x}^{5} ) = 5 log_{4}(x) [/tex]
EXPLANATION
1. The given logarithmic expression is
[tex] log_{4}(3x) [/tex]
Use the product rule:
[tex] log_{a}(mn) = log_{a}(m) + log_{a}(n) [/tex]
We apply this rule to obtain:
[tex]log_{4}(3x) = log_{4}(3) + log_{4}(x)[/tex]
2. The given logarithmic expression is
[tex] log_{3}( \frac{27}{x} ) [/tex]
We apply the quotient rule:
[tex]log_{a}( \frac{m}{n} ) = log_{a}(m) - log_{a}(n) [/tex]
This implies that;
[tex]log_{3}( \frac{27}{x} ) = log_{3}(27) - log_{3}(x) [/tex]
We simplify to get;
[tex]log_{3}( \frac{27}{x} ) = log_{3}( {3}^{3} ) - log_{3}(x) [/tex]
Apply the power rule:
[tex] log_{a}( {m}^{n} ) = n log_{a}(m) [/tex]
[tex]log_{3}( \frac{27}{x} ) = 3 log_{3}( {3}) - log_{3}(x) [/tex]
simplify;
[tex]log_{3}( \frac{27}{x} ) = 3 (1) - log_{3}(x) [/tex]
[tex]log_{3}( \frac{27}{x} ) = 3 - log_{3}(x)[/tex]
3. The given logarithmic expression is;
[tex] log_{4}( {x}^{5} ) [/tex]
Apply the power rule of logarithms.
[tex]log_{a}( {m}^{n} ) = n log_{a}(m) [/tex]
This implies that,
[tex]log_{4}( {x}^{5} ) = 5 log_{4}(x) .[/tex]
Simplify the expression (Picture provided)
Answer:
b. secx
Step-by-step explanation:
We have given a trigonometric expression.
csc(x)/cot(x)
We have to simplify it.
Since we know that
csc(x) is reciprocal to sin(x).
cscx = 1/sinx
cot(x) is ratio of cos(x) and sin(x).
cotx = cosx/sinx
Then, given expression becomes,
[tex]\frac{1/sinx}{cosx/sinx}[/tex]
[tex]\frac{1}{sinx}[/tex] × [tex]\frac{sinx}{cosx}[/tex]
[tex]\frac{1}{cosx}[/tex]
csc(x)/cot(x) = secx
A scale on a map shows that 2.5 centimeters represents 15 kilometers. What number of actual kilometers are represented by 17.5 centimeters on the map?
Answer:
105
Step-by-step explanation:
to get this you must first divide 17.5 by 2.5 to see how many times to multiply 15 by 2.5
sorry if it does not make scence
What is the area of this triangle?
Round to the nearest hundredth.
Answer: 2.94 ft²
Step-by-step explanation:
Observe the figure attached:
The line LM divide the triangle into two right triangles.
Find the heigh "h" as following:
[tex]sin\alpha=\frac{opposite}{hypotenuse}\\\\sin(40\°)=\frac{h}{2.7}\\\\h=(2.7)(sin(40\°))\\h=1.73ft[/tex]
Apply the formula for calculte the area of a triangle:
[tex]A=\frac{Bh}{2}[/tex]
Where B (B=3.4 ft) is the base and h is the height (h=1.73ft)
Then:
[tex]A=\frac{(3.4ft)(1.73ft)}{2}=2.94ft^2[/tex]
What is the following sum?
(please show how you worked it out)
Answer:
[tex]4\sqrt[3]{2}x(\sqrt[3]{y}+3xy\sqrt[3]{y} )[/tex]
Step-by-step explanation:
Let's start by breaking down each of the radicals:
[tex]\sqrt[3]{16x^3y}[/tex]
Since we're dealing with a cube root, we'd like to pull as many perfect cubes out of the terms inside the radical as we can. We already have one obvious cube in the form of [tex]x^3[/tex], and we can break 16 into the product 8 · 2. Since 8 is a cube root -- 2³, to be specific, we can reduce it down as we simplify the expression. Here our our steps then:
[tex]\sqrt[3]{16x^3y}\\=\sqrt[3]{2\cdot8\cdot x^3\cdot y}\\=\sqrt[3]{2} \sqrt[3]{8} \sqrt[3]{x^3} \sqrt[3]{y} \\=\sqrt[3]{2} \cdot2x\cdot \sqrt[3]{y} \\=2x\sqrt[3]{2}\sqrt[3]{y}[/tex]
We can apply this same technique of "extracting cubes" to the second term:
[tex]\sqrt[3]{54x^6y^5} \\=\sqrt[3]{2\cdot27\cdot (x^2)^3\cdot y^3\cdot y^2} \\=\sqrt[3]{2}\sqrt[3]{27} \sqrt[3]{(x^2)^3} \sqrt[3]{y^3} \sqrt[3]{y^2}\\=\sqrt[3]{2}\cdot 3\cdot x^2\cdot y \cdot \sqrt[3]{y^2} \\=3x^2y\sqrt[3]{2} \sqrt[3]{y}[/tex]
Replacing those two expressions in the parentheses leaves us with this monster:
[tex]2(2x\sqrt[3]{2}\sqrt[3]{y})+4(3x^2y\sqrt[3]{2} \sqrt[3]{y})[/tex]
What can we do with this? It seems the only sensible thing is to look for terms to factor out, so let's do that. Both terms have the following factors in common:
[tex]4, \sqrt[3]{2} , x[/tex]
We can factor those out to give us a final, simplified expression:
[tex]4\sqrt[3]{2}x(\sqrt[3]{y}+3xy\sqrt[3]{y} )[/tex]
Not that this is the same sum as we had at the beginning; we've just extracted all of the cube roots that we could in order to rewrite it in a slightly cleaner form.
What is measure of angle A?
Enter your answer as a decimal in the box. Round only your final answer to the nearest hundredth.
Answer:
The measure of the angle A is [tex]53.13\°[/tex]
Step-by-step explanation:
we know that
In the right triangle ABC
The tangent of angle A is equal to the opposite side to the angle A divided by the adjacent side to angle A
so
[tex]tan(A)=\frac{BC}{AB}[/tex]
substitute
[tex]tan(A)=\frac{4}{3}[/tex]
[tex]<A=arctan(\frac{4}{3})=53.13\°[/tex]
Lila ate 1/4of her sandwich.Alexis are 3/4 of her sandwich. How much more of the sandwich did Alexis eat than lila
Answer:
2/4
Step-by-step explanation:
1/4 = 0.25
3/4 = 0.75
0.75 - 25 = 0.50
0.50 is your answer
How dose finding the square root of a number compare to finding the cube root of a number? Use the number 64 in your explanation.
The perimeter of a square is represented by the expression 4x−6. 4
Which expression also represents the perimeter?
1) 4(x−24)
2) 4(x−6)
3) 2(x−3)
4) 4(x−32)
probably the formula is 4×(x-1.6)
Answer:
4) 4(x−32)
Step-by-step explanation:
Bob has 3 packs of model cars. He gave away 4. He has 11 left. How many were in a pack
Answer:15
Step-by-step explanation:he has 3 packs of model cars. 15 is in each pack if he gave away four he would have 11 left.
Item 7 Solve for x. ? 4(5x?20)=?20 ? Enter your answer in the box.
Answer:
x=3
Step-by-step explanation:
A set of numbers is shown below:
{0, 0.8, 1, 3, 6}
Which of the following shows all the numbers from the set that make the inequality 7x + 1 ≥ 8 true?
{1, 3, 6}
{3, 6}
{0, 0.8, 1}
{0, 0.8}
Answer:
I'm pretty sure it'd be set {3,6}
Answer:
A
Step-by-step explanation:
The two solids are similar and the ratio between the lengths of their edges is 2:7 what is the ratio of their surface areas?
Answer:
The ratio of their surface areas is [tex]\frac{4}{49}[/tex]
Step-by-step explanation:
we know that
If two figures are similar, then the ratio of its corresponding sides is equal and this ratio is called the scale factor
In this problem the scale factor is equal to the ratio [tex]\frac{2}{7}[/tex]
and
Remember that
If two figures are similar, then the ratio of its surface areas is equal to the scale factor squared
therefore
In this problem the ratio of their surface areas is [tex](\frac{2}{7})^{2}=\frac{4}{49}[/tex]
Final answer:
The ratio of the surface areas of two similar solids with a linear dimension ratio of 2:7 is 4:49.
Explanation:
The question deals with the concept of geometric similarity and the ratio of surface areas for similar solids. When two solids are similar, the ratio of their surface areas is the square of the ratio of their corresponding linear dimensions. Therefore, if the ratio between the lengths of their edges is 2:7, then the ratio of their surface areas would be the square of this ratio, which is (22):(72) or 4:49.
The width of the Ochoa community pool is 20 feet. The length is twice as long as it's width. What is the perimeter of the pool?
Answer:
120 feet
Step-by-step explanation:
1. find the length of the pool (2*20 = 40 feet)
2. add the sides 2L + 2W
2L = 2*40 = 80
2W = 2*20 = 40
80+40=120
An 8-pound boneless ham contains 36 servings of meat. How many servings would an 2 pound ham make? Show your work using equivalent ratios.
Answer:
9 servings of meat.
Step-by-step explanation:
The first ratio you are given is 8:36. You are trying to figure out what 2:__ is.
8/36 x 2/X
Multiply 2 x 36 and get 72. Now divide 72 by 8 to get 9.
Answer:
The answer really is 9 servings of meat.
Step-by-step explanation:
I had the same question and I got it right...but mine said: Write a proportion that could be used to solve this problem. Do not solve it.
Write the algebraic expression for the phrase below. Use k for the variable. The product of a number and six.
Answer:
[tex]6k[/tex]
Step-by-step explanation:
Let
k-----> the variable
we know that
The phrase " The product of a number and six" is equal to multiply the variable k ( the number) by 6
so
[tex]6k[/tex]
Regard y as the independent variable and x as the dependent variable and use implicit differentiation to find dx/dy. x5y2 − x4y + 2xy3 = 0
Answer:
dx/dy = (x^4 - 2x^5y - 6xy^2) / (5x^4y^2 - 4x^3y + 2y^3).
Step-by-step explanation:
x^5y^2 − x^4y + 2xy^3 = 0
Applying the Product and Chain Rules:
y^2*5x^4*dx/dy + 2y*x^5 - (y*4x^3*dx/dy + x^4) + (y^3* 2*dx/dy + 3y^2*2x) =0
Separating the terms with derivatives:
y^2*5x^4*dx/dy - y*4x^3*dx/dy + y^3* 2*dx/dy = x^4 - 2y*x^5 - 3y^2*2x
dx/dy = (x^4 - 2x^5y - 6xy^2) / (5x^4y^2 - 4x^3y + 2y^3)
Answer:
[tex]\frac{dx}{dy}=\frac{-2x^5y+x^4-6xy^2}{5x^4y^2-4x^3y+2y^3}[/tex]
Step-by-step explanation:
The given equation is
[tex]x^5y^2-x^4y+2xy^3=0[/tex]
Differentiate with respect to y.
[tex]\frac{d}{dy}(x^5y^2)-\frac{d}{dy}(x^4y)+\frac{d}{dy}(2xy^3)=0[/tex]
Using product rule we get
[tex]x^5\frac{d}{dy}(y^2)+y^2\frac{d}{dy}(x^5)-x^4\frac{d}{dy}(y)-y\frac{d}{dy}(x^4)+2x\frac{d}{dy}(y^3)+2y^3\frac{d}{dy}(x)=0[/tex] [tex](fg)'=fg'+gf'[/tex]
[tex]x^5(2y)+y^2(5x^4\frac{dx}{dy})-x^4(1)-y(4x^3\frac{dx}{dy})+2x(3y^2)+2y^3\frac{dx}{dy}=0[/tex]
[tex]2x^5y+5x^4y^2\frac{dx}{dy}-x^4-4x^3y\frac{dx}{dy}+6xy^2+2y^3\frac{dx}{dy}=0[/tex]
Isolate [tex]\frac{dx}{dy}[/tex] terms on left side.
[tex]5x^4y^2\frac{dx}{dy}-4x^3y\frac{dx}{dy}+2y^3\frac{dx}{dy}=-2x^5y+x^4-6xy^2[/tex]
[tex](5x^4y^2-4x^3y+2y^3)\frac{dx}{dy}=-2x^5y+x^4-6xy^2[/tex]
Isolate [tex]\frac{dx}{dy}[/tex] term.
[tex]\frac{dx}{dy}=\frac{-2x^5y+x^4-6xy^2}{5x^4y^2-4x^3y+2y^3}[/tex]
Therefore the value of [tex]\frac{dx}{dy}[/tex] is [tex]\frac{-2x^5y+x^4-6xy^2}{5x^4y^2-4x^3y+2y^3}[/tex].
One solution to the problem below is 7. What is the other solution?
Answer:
-7
Step-by-step explanation:
7 and -7 squared both equal 49
In the figure, ΔGTS is similar to ΔFHS. What's the length of side GT?
A. 13.8
B. 12.8
C. 8.4
D. 2.7
[tex]GT=\frac{HF.TS}{SF}=\frac{4.8\times 21}{12}=8.4 [/tex]
Sally is a sales manager.She makes $73,000 a year.Sally has worked hard all year and receives a 6% raise.How much will sally make next year?
Answer:
$77,380
Step-by-step explanation:
If she gets a 6% raise next year she will make 106% of what she makes this year.
106% is 1.06 as a decimal. Multiply her salary by 1.06 to find out how much she will make next year...
$73,000(1.06) = $77,380
Answer:
77,380
Step-by-step explanation:
divide 73000 by 100% and you get 730, then you multiply it by 6 since you need a 6% raise. once you get this value, you simply add it to the 73000 and you get the answer
Identify the domain and range of the following graph.
domain and range are both infinite
Need help with this
Answer:
[tex]\large\boxed{\tan x(\cot x-\cos x)=1-\sin x}[/tex]
Step-by-step explanation:
[tex]Use\\\\(\tan x)(\cot x)=1\\\\\tan x=\dfrac{\sin x}{\cos x}\\\\\text{distributive property:}\ a(b-c)=ab-ac\\======================\\\\\tan x(\cot x-\cos x)=(\tan x)(\cot x)-(\tan x)(\cos x)\\\\=1-\left(\dfrac{\sin x}{\cos x}\right)(\cos x)=1-\sin x[/tex]
Jason has two bags with 6 tiles each.
Without looking, Jason draws a tile from the first bag and then a tile from the second bag. What is the probability of Jason drawing an even tile from the first bag and an even tile from the second bag?
Answer:
1/4.
Step-by-step explanation:
I am assuming that there are 3 even and 3 odd tiles in each bag.
Probability( drawing an even tile form one bag) = 3/6 = 1/2.
The probability of drawing an even from the first and an even from the second = 1/2 * 1/2 = 1/4 (answer).
The individual probabilities are multiplied because the 2 events are independent.
Answer:
9/36
Step-by-step explanation:
53.4*16.2 please please
Answer:
865.08
Step-by-step explanation:
✯Hello✯
↪ The answer is 865.08
↪ Times both of them by 10 so they are whole numbers
↪ Then it will be 534 x 162 = 86508
↪ Then divide by 100
❤Gianna❤
To multiply 53.4 and 16.2, calculate 534 * 162, then adjust the result by placing the decimal point two places from the right to get 865.08. This gives the final product of 865.08.
To find the product of 53.4 and 16.2, follow these steps:
First, ignore the decimal points and multiply the numbers as if they were whole numbers:534 * 162 = 86508Next, count the total number of decimal places in the original numbers.Here, 53.4 has one decimal place and 16.2 also has one decimal place, making a total of two decimal places.
Place the decimal point in the product, moving it two places from the right:86508 becomes 865.08Therefore, 53.4 * 16.2 equals 865.08.
Marcus needs 108 inches of wood to make a frame how many feet of wood Does Marcus need for the frame
Answer: 9 feet.
Step-by-step explanation: The formula to convert inches to feet is to divide the amount in inches by 12. 108/12 = 9.
Jenny has two congruent kleenex boxes. The first box has a volume of 72 in2, a length of 3 inches and a width of 4 inches. What is the height of the second box?
Answer:
The height of the second box is [tex]6\ in[/tex]
Step-by-step explanation:
we know that
If the two boxes are congruent
then
The volume of the first box is equal to the volume of the second box
The length of the first box is equal to the length of the second box
The width of the first box is equal to the width of the second box
The height of the first box is equal to the height of the second box
so
Find the height of the first box
Remember that
The volume of the box is equal to
[tex]V=LWH[/tex]
substitute the values and solve for H
[tex]72=(3)(4)H[/tex]
[tex]H=72/(12)=6\ in[/tex]
Graph the relation and its inverse. Use open circles to graph the points of the inverse. x –3 4 6 9 y 5 6 –9 –10
Answer:
See attached picture.
Step-by-step explanation:
Graph the function as (x,y) points.
(-3,5)
(4,6)
(6,-9)
(9,-10)
These are graphed in black on the picture.
To graph the inverse, switch the points from (x,y) to (y,x).
(5,-3)
(6,4)
(-9,6)
(-10,9)
These are graphed in red on the picture.
How many square feet will we need for this hole that has 4 feet 12 feet 3 feet 2 feet 1 feet 2 feet
I think you're answer is five hundred seventy six
If the probability of an event is 2/7 what must be the probability of its complement?
Answer:
5/7
Step-by-step explanation:Let
x------->the probability of its complement
we know that
The Complement Rule states that the sum of the probabilities of an event and its complement must equal
so
in this problem
2/7 + x = 1
solve for x
Adds 1- 2/7 both sides
x= 1 - 2/7
x= 5/7
Answer:
5/7
Step-by-step explanation:
30 points !!! Polygon ABCDE is reflected to produce polygon A?B?C?D?E?. What is the equation for the line of reflection? a. Y = 0 b. X = 0 c. X = 2 d. Y = 1
The equation for the line of reflection is x = 0 if the polygon ABCDE is reflected to produce polygon A'B'C'D'E'
What is geometric transformation?It is defined as the change in coordinates and the shape of the geometrical body. It is also referred to as a two-dimensional transformation. In the geometric transformation, changes in the geometry can be possible by rotation, translation, reflection, and glide translation.
We have a polygon ABCDE is reflected to produce polygon A'B'C'D'E' in the picture.
As we know, the reflection is the geometric transformation which create a mirror image of the object, but size or shape does not change.
The y-axis is the axis of reflection in this case.
The equation for the y-axis is x = 0
Thus, the equation for the line of reflection is x = 0 if the polygon ABCDE is reflected to produce polygon A'B'C'D'E'
Learn more about the geometric transformation here:
brainly.com/question/16156895
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